Valve-lifter



E. F. WILKINSON, III.

VALVE LIFTER.

APPLICATION FILED IuIIEIz. I9I9.

Patented Feb.v 17, 1920.

EDWARD F. WILKINSON, J R. 0F GRAMERCY, LOUISIANA.

Specification of Letters Patent.

VALVE-LIFTER.

Application ledJ une 12, 1919. Seriall No. 303,580.

To all whom fancy concern:

Be it knownthat I, EDWARD F. ViLKiN- son, Jr., a citizen of the UnitedStates, residing at Gramercy, in the parish of St. James and State ofLouisiana, `have invented certain new and useful Im rovements inValve-Lifters; and I dolhere y declare the following to be a full,clear, and exact description of theinvention, suchas `will en-` pertainsto make and `use the same. i

My invention relates to improvements in devices for Vwithdrawing thevarious parts of valve mechanismsfrom their seated posi able othersskilled in the art to which itaptions, and it relates more especially to.the removal of valves and their seats from interand effectively whendesired, either for purv poses of cleaning or repair.

`Such parts are `apt to stick very hard in their seats, andto effecttheir removal considerable power has to be applied in a con` venient'way.` VSuch results are procured by the hereinafter described device.

Reference is `had to the accompanyino` drawings, inwhich likeparts areindicated bysimilar reference :symbols throughout the several views,andin whicht- Figure l Ais a "sectional elevation through lthe valvecasingand its contiguous parts, the valve being shown in elevationandparts of the valveY lifter being shown in section, the valve' easingbeing shown Vin the fixedl position;and"` i d Fig. 2 is a similar view,but showing the parts of the valve casingand valvein elevation, and alsoshowing the lifter inelevation, but with the valvecasing lifted and thelifter in thel closed position.

A represents the cylinder casing bored as." at a. to receivethe'valvecasingB, which is providedwitli thevalve sea-t Z9 and the central sleeveb ada ted to receive the steinf C of the valve This valve casing is heldin` placeby the screw collar Bffand the packingring B2.`

D represents the valve stemhead, which is cup-shaped as shown in Figi,and into this head the pinl4 projects from the valve stern.

F represents the valve spring whiehbears at one end on the valve stemhead, and at the other end on an annularplate or washer G mounted abovethe valve casing B.

So far all of the parts are of standard make and are merely illustrativeof the action of the apparatus, and these parts may be changed withoutin any way affecting the invention itself, which will now be described.i

The lifter comprises the main framev or yoke H, provided with legs 7L towhich are adjustably attached the shoes H, as by the pins i passingthrough the holes LO in the legs 'z, and in the shoes H. This frame isPatented Feb. 17, 1920. p

neath the flange al of the stein head D, and

to engage the first coil of the spring F.

The claw K is made somewhat longer so as to engage the two upper coilsof the spring F, so that these upper coils of the spring will afford awide bearing in the operation of lifting, and will ordinarily obviateany danger of the claws pulling lhrrugh or bending the flange d of thestem The draw-bar J is reciprocated by a toggle joint arrangementcomprising two bell crank levers M and M', hinged to the head of thedrawbar J as at m, and having their pivots m connected bythe links Land'L, respectively, to the main frame l-l. To the upper arms of thebell crank levers M and M the hand levers N and N are pivoted, as at n,and these levers are connected together by the link O, and are providedwith handles a the open position, as shown in Fig. l, and at the sametime the dravwbai' J is ordinarily thrown to the lower or initialengag-` ing position as shown in said figure, `by means fof the coilspring P. i

l Inl order to operate the device, first re,`

move the rocker arm, not shown, from'over the valve to be removed, thenunscrew the collar or bushing which holds the valve casing in thecylinder, `and after this apply aV The handles `are ordinarily thrown tounscrew the collafr .or bushing .'Bs.' More overrin using-the` toolthereisvno danger of Y bending :the .valve stems. "or' injuring fthelifterdirectlyover the valve stem with the legs set firmly on the cylinder,the shoes, of

course, being adjusted to the lengthof the Y- valve stem which is'lbeingjoperated upon;

then take'a pair'pliers and turn the valve until the pin E is on thesame angle as the claws K and K". Then turn the valve spring until therst coil is under the flange l opposite the claw K and press this clawinto the springnnder the iirst coil, then press the long claw` K` intoAthe spring under" the second coil. After the clawsKvand K are inengagement beneath the coils of the spring; aforesaid,y andthev legsofthe frame: in the` proper position,V squeeze the handles 'n' togetherand this will cause theftogfglel joint arrangement to liftthe y valve'casing reeoffits seat, andwin a position to be convenientlyhandled bythe operator If .the stemfheadD threatens to bend, vremovefit andthefvalvc `springuand apply a special steel washer beneath the pin E.Any

amountfof pressure can Vnow bel s applied,

without.causingdamageg until the' valve and the, casinghave beenextracted:

By having the. legs of'y the mainframe ad 4` justable,- the lifter Emay-be quickly adaptedn tol any ordinary length of valve stem ;but| itwillA onlyqbe' necessary to adjustfthelegsronce for 'any` givenlautomobilefor once for the same length@f .The herein.` described deviceis Aespecially adapted fory use with various "standarditypes ofautomobiles auto trucks, orthe like,` and i may be readily vattachedtoalmostiany kind of internal rcombustion :engines inA which-1 there is Aaproj ecting valve .stenn The A-he'reinldescribed device is liglitfiandrcheap,V and ofsuch dimensions that it maybef carried'oniany toolboxor'kit, ormay. be

y any given f types of automobile, engines#- where `rthewva'lve stemsareofY substantially f ping means carried by said bar7 and a tog-` gleVjoint arrangement carried by said main frame, and comprising a pair ofoppositely disposed bell crankflevers each-pivotedat itslzlower,` endytol said draw' bar, a pair of hand levers havingtheir lower armspivotedy toi the -upper arms of the said bell. crank leversyand .theupper arms of said hand levers terminating '.iirhandles,V the said handlevers beingpivoted together between said' upperV and lower: arms, andAlinks: each hinged 'atone end .to'said ramefand at theother l`'endforming a pivot Afor4 thewcorresponding bell crank ylever, substantiallyas described.

Q .Apparatus of thecharacter described comprising a. mainframe'providedwith.y

downwardly. projectingbearing legs,v a draw bardshdably `mountedinsaidvframe, grip pingfmeansf carred by said bar7 and .a tog-.. gle:]o1nt.arrangementy carried bysaid main rame, :andi comprising. a pair ofoppositely disposedibel-'Lcrank llevers. each pivoted at its lower endto .saiddrawebar, aipair off" used-at the ,garagesfv It operatesveryquicklyf and effectively and does-not require the use:` of anyadditionalitoolsexcept a wrenchto springs-,for.` stemt' headsyor ofcracking: or;

breaking the valve casing.

It Vwill befseen thatthe. device operates: with a straight. pull in theidirectioni of the axisof. thelvalvestem and-v consequently inthe-direction of thea aXis'ofthe casing, and

that. there: is no bending. tendency whatso- These and various otheradvantages of the:`

herein -ldescribed construction cwill'rbe 4-obvious toany practicalmechaniccaccustoined to' operating. devicesE of thisA characteraf It:willfbeobvious that .variou'smodificaff tions might. beumade in fthe;herein described apparatusiand i in =the construction,l combinaetioniand arrangement of)` parts'awhich; could? be' y used?v withoutVfdeparting lfrom fthe'spirit' hand'levers-'havin'g their lower armspivoted to-thel .upper arms: ofthefsaidbell crank i levers, andthefupperarms Aoffsaid hand leversy terminatingfinl handles7 the:sa-idxl h and levers beingpivoted together `between saidupperf; and:lower 'armsy and linksy each hlngedlati one; end-.tosaid frame and atthe other;` endl iformingza i' pivoty.for the correA sponding bell cranklever with a coil spring.

for.- .zrestoringf .tl1esaid .toggle joint mechanismtoithe"initialfposition;substantially as described. Apparatus ofthefcharacter.described comprising. a `maine; frame .provided with.

downwardly projecting adjustableflegs; a drawfbar l slidably. Amountedin said frame,

hinged claws carried'by saidibar, and a togf.

gle i] oint.. arrangementl carried by said .main

frame,y 'and .comprising a pair 'of op positcl y disposed bellcrankvlevers Veach pivotcd4 at its. lower. endto sa1d'drawbar, a pair ofhand levers :havingtheir lower arms pivoted to thehupper arms'.ofthewsaidi'bell crank levers,fand.the .upper farmsV of said handleversfterminatinginhandles, the` said hand leversrbeing l-pivoted`together between said upper land lower arms, and links each hinged*` atone: `end tot said frame and `at lthe other-'zendrforming'La pivot forthe fcorrespondin :bell crank lever,r substantially asdescrlbe z2' 4.Apparatus of the character described, havin their fulcrulns connected tosaid comprising a main frame provided with main trame, With arms pivotedtogether and downwardly projecting bearing legs, a draw connected to thefree ends of said bell 10 Vbar slidably mounted in said frame, clawscranks, with means for forcing said arms 5 carried by said bar, and atoggle joint arapart, substantially as described.

rangementcomprising a pair of bell cranks pivoted at one end to saiddraw bar, and EDWARD F. WILKINSON, JR.

